-#!/usr/bin/env python
+#!/usr/bin/env python3
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
import sys
-from arvados.commands.cwl_runner import main
+from arvados_cwl import main
sys.exit(main(sys.argv[1:], sys.stdout, sys.stderr))